<script setup lang='ts'>

import useStore from '@/store';
import { watch, watchEffect } from 'vue';
import { useRoute } from 'vue-router'
import { storeToRefs } from 'pinia'
import GoodsItem from './components/goods-item.vue'

// 获取路由参数对象 
const route = useRoute()
const { category, home } = useStore()
home.getBannerList()
// category.getTopCategory(route.params.id as string)


// 我们发现参数变化了,模板中的数据没有变化,vue有一个原则(就地复用)
// setup只会执行一次
// 解决方案: watch侦听参数的变化  (没有局部侦听器这个概念) 所有的组件都会执行
// watch(() => route.params.id, () => {
//     // console.log("侦听器执行了");
//     // console.log(route.fullPath);
//     // if(/category/1005000===/category/1005000)
//     // if(/===/category/1005000)
//     if (route.fullPath === `/category/${route.params.id}`) {
//         category.getTopCategory(route.params.id as string)
//     }

// }, {
//     immediate: true
// })

watchEffect(() => {
    if (route.fullPath === `/category/${route.params.id}`) {
        category.getTopCategory(route.params.id as string)
    }
})


// 解构category中的属性
const { topCategory } = storeToRefs(category)

</script>

<template>
    <div class="top-category">
        <div class="container">
            <!-- 渲染面包屑导航 -->
            <XtxBread>
                <XtxBreadItem to="/">首页</XtxBreadItem>
                <XtxBreadItem>{{ category.topCategory.name }}</XtxBreadItem>
            </XtxBread>

            <!-- 轮播图组件 -->
            <XtxCarousel :slides="home.bannerList" :style="{ height: '500px' }" autoplay :duration="3000"></XtxCarousel>

            <!-- 所有二级分类 -->
            <div class="sub-list">
                <h3>全部分类</h3>
                <ul>
                    <li v-for="item in topCategory.children" :key="item.id">
                        <a href="javascript:;">
                            <img :src="item.picture">
                            <p>{{ item.name }}</p>
                        </a>
                    </li>
                </ul>
            </div>

            <!-- 分类关联商品 -->
            <div class="ref-goods" v-for="item in topCategory.children" :key="item.id">
                <div class="head">
                    <h3>- {{ item.name }} -</h3>
                    <p class="tag">温暖柔软，品质之选</p>
                    <XtxMore />
                </div>
                <div class="body">
                    <GoodsItem :goods="sub" v-for="sub in item.goods" :key="sub.id" />
                </div>
            </div>
        </div>
    </div>

</template>

<style scoped lang="less">
.top-category {
    h3 {
        font-size: 28px;
        color: #666;
        font-weight: normal;
        text-align: center;
        line-height: 100px;
    }

    .sub-list {
        margin-top: 20px;
        background-color: #fff;

        ul {
            display: flex;
            padding: 0 32px;
            flex-wrap: wrap;

            li {
                width: 168px;
                height: 160px;

                a {
                    text-align: center;
                    display: block;
                    font-size: 16px;

                    img {
                        width: 100px;
                        height: 100px;
                    }

                    p {
                        line-height: 40px;
                    }

                    &:hover {
                        color: @xtxColor;
                    }
                }
            }
        }
    }
}

.ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;

    .head {
        .xtx-more {
            position: absolute;
            top: 20px;
            right: 20px;
        }

        .tag {
            text-align: center;
            color: #999;
            font-size: 20px;
            position: relative;
            top: -20px;
        }
    }

    .body {
        display: flex;
        justify-content: flex-start;
        flex-wrap: wrap;
        padding: 0 65px 30px;
    }
}
</style>
